My son's room is decorated in Zoo animals. He's approaching 6 and I know one of these days he's going to want to paint over the picture of the zoo animals in his room and put up a race car or a train. I might cry that day, but my husband fully supports letting our little guy change his decorations when he so chooses. For now, he's still my baby, but when he's older, I want him to see the cool mural that we had in his room, not just for him, but for me also.
The whole top half of the layout is the picture from his room.